[llvm-branch-commits] [llvm] [LV] Bundle partial reductions inside VPExpressionRecipe (PR #147302)

[Nicholas Guy via llvm-branch-commits]

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@@ -2955,12 +2966,14 @@ tryToMatchAndCreateMulAccumulateReduction(VPReductionRecipe *Red,
 
     // Match reduce.add(mul(ext, ext)).
     if (RecipeA && RecipeB &&
-        (RecipeA->getOpcode() == RecipeB->getOpcode() || A == B) &&
+        (RecipeA->getOpcode() == RecipeB->getOpcode() || A == B ||
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NickGuy-Arm wrote:

Is there a case where the recipe opcodes could be different, but A and B are still equal? Do we need both checks here? The `|| A == B` feels redundant, but maybe I'm missing something.

https://github.com/llvm/llvm-project/pull/147302